image=double(imread("fig6.tif"));
subplot(2,2,1),imshow(uint8(image));
subplot(2,2,2),imhist(uint8(image));
[m,n]=size(image);
image1=double(zeros(m,n));
for i=1:m
    for j=1:n
        image1(i,j)=image(i,j)^1.1;
    end
end
subplot(2,2,3),imshow(uint8(image1));
subplot(2,2,4),imhist(uint8(image1));
